PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES,

MID TERM ONE – MARCH-2024

CHEMISTRY FORM ONE

TIME 2HOURS

TIME: 2:30 HRS

INSTRUCTIONS 

1.   Thus paper consists of section A, B and C with total of  ten (10) questions
2.   Answer all questions
3.   All writing must be in blue or Black in except drawing which must be in pencil
4.   Section A and C carry fifteen (15) marks
5.   Cellular phones and any unauthorized material are not allowed in assessment room

SECTION A(30 MARKS)

1.         For each of the following items  (i-x).Choose the correct answer from given alternatives and writer its letter besides the item number in the box provided

1.  Which are the common activities done in the chemistry Laboratory

1. Exhibition
2. Demonstration
3. Exercise
4. Experiment

2.  The following substances are constituents of first aid kit in chemistry Laboratory except

1. Petroleum gel
2. Iodine tincture
3. Cotton wool
4. Plaster of pans

3.   What is the suitable method of separating a mixture of sand and Ammonium Chloride?

1. Magnetization
2. Decantation
3. Sublimation
4. Simple distillation

4.    Which one is an example of liquid solution

1. Dental Amalgam
2. Fresh milk
3. Alloys
4. vinegar

5.   Which is the suitable alternative heat source to be used in absence of Bunsen burner?

1. Torch and spirit burner
2. Torch and kerosene stove
3. Kerosene stove and  spirit burner
4. Firewood and torch

6.    Which state is involved when drying wet clothes?

1. Liquid to solid
2. Solid to gas
3. Gas to liquid
4. Liquid to gas

7.  Fainting is a suddenly loss of

1. Confidence
2. Weight of the body
3. Water in the body
4. Consciousness

8.  Which statement given  a clear meaning of chemistry

1. The study of matter in relation to energy
2. The study of nature and properties of matter
3. Study of matter and arrangement of particles
4. The study of matter and chemical reaction

9.    Which of the following is a metal

1. Water
2. Chlorine
3. Sodium
4. Nitrogen

10.      Matter is anything that has

1. Volume and occupying space
2.   Mass and occupies space
3.  Mass And occupies density
4. Density and space

2.         Match each item in LIST  A with correct response in list B by  writing  its letter below the item number on table provided

SECTION B

(70 MARKS)

Answer all questions in this section

3.         Using diagram explain the arrangement of particles in solid, liquid and gas
4.         (a) What is Laboratory?

(b) Give four features of a laboratory

(c) Mention three accidents that can occur in laboratory

5.         (a) What is Chemistry?

(b) Johanes is a form one student who is very reluctant to study chemistry.  Advice him on the importance of studying Chemistry.

6.         (a)what do you understand by first aid

(b)  Explain five importance of first aid

(c) Mention three accidents that can occur at home.

7.         Chemistry is very important for technological advancement of a country.

(i) Mention four areas where knowledge of chemistry is applied

(ii) Name products made by chemistry knowledge in the following fields

1.             Home items
2.             Agriculture
3.             Cosmetics

8.         Safety in laboratory is very important.

1.     What do you understand by the term safety
2.  Mention 8 Laboratory rules that should be observed

9.         First aid kit is a box containing items to be used during first aid. Give the use of the following items

1.     Cotton pads
2.  Pain killer
3.                         Antibiotics
4.                         Soap
5.   Gloves

10.    Warning signs are very important in guaranteeing safety of uses in laboratory. Basing your answer on examples of substances describe five warning signs.  Use diagrams correctly

PRESIDENT OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES 

COMPETENCE BASED ASSESSMENT

033 CHEMISTRY FORM ONE 

MID-TERM EXAMS-MARCH – 2023 

Time: 2:30 Hours

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all questions
3. Section A and C carry fifteen (15) marks each and Section B carries seventy (70) marks.
4. All writing must be in blue or black ink except drawing which must be in pencil.
5. Cellular phones and any unauthorized materials are not allowed in the assessment room.

SECTION A

1.  For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter in the box provided.

1. Chemistry is one of the science which deals with;

1. Alkalinity and basicity of substance
2. The study of body cells
3. Composition, propertier and behavior of matter
4. Chemical changes

2. In chemistry experiments test

1. Data
2. Problem
3. Hypothesis
4. Observation

3. When a chemists studies a substance, he/she is interested in its

1. Force of attraction
2. Shape
3. Small
4. Properties

4. Chemistry is defined as

1. The scientific study of matter, compound and chemical reaction
2. The scientific study of compounds, mixture and organic substances
3. The scientific study of composition structure and properties of matter.
4. The study of relation between

5. A chemist should acquire all of the following skills except.

1. Experimentation
2. Observation
3. Problem identification
4. Surgery

6. Which of the following sets of apparatus contains exact volume measuring items?

1. Pipette, burette, thermometer
2. Pipette burette, measuring cylinder
3. Flasks, beaker, measuring cylinder
4. Conical flasks, test tube, pipette

7. Flammable chemicals are ones which can

1. Catch fire easily
2. Explode easily
3. Poison ayou
4. Burn your skin

8. Kipps apparatus is used in the laboratory for

1. Obtaining pure gases
2. Drying gases
3. Obtaining continuous supply of gases
4. Separation of gases

9. A pipette is used for

1. Measuring distance of length
2. Measuring specific volume of liquids
3. Measuring volumes
4. Heating liquids

10. Which of the following sets of apparatus are suitable for measuring volume of solutions

1. Burette, Pipette, and beaker
2. Burette, pipette and conical flask
3. Measuring cylinder, burette and pipette
4. Burette, flat bottomed flask and pipette

2. (a)Match the mixtures in List A with the methods of separation in List B by writing the letter of the correct response below the corresponding item number in the table provided.

(b)Fill in the blanks below

1. An exercise book is a matter because it has __________ and _________
2. A change in the appearance and shape of a substance is a chemical change _____
3. When water is heated it changes into vapor, when vapor is cooled it changes into
4. A common example of matter that can exists in all three states is __________
5. The particles in ____ are arranged closely and packed in fixed pattern.

SECTION B (80 Marks)

Answer all questions in this section

3. (a)Give the reason to why the chemicals in the laboratory should be labelled and well closed after use.

(b)the shelves in the laboratory should be labelled and constructed in a way that it is at the eye level and not above the eye level. Give the reason behind the statement

4. (a)Write the 6 scientific procedure in a form of descending (From the last to the first)

(b)There is no solution of a problem without research. Prove the statement

5. (a)What are the effect if one fails to follow the following laboratory instructions

1. Failure to follow instructions guided
2. Improper disposal of broken glass materials

(b) Write the functions of the following laboratory tools 2 functions

1. Round bottomed flask
2. burette

6.

1. Mention three branches of science
2. Who is a chemist?
3. List 5 places where chemistry is applied
4. Name three cleaning agents made by chemistry knowledge

7. Mention four importance of studying chemistry

8. (a) Mention two items used in each of the following categories that are made through application of chemistry

1. Agriculture
2. Pharmaceutical
3. House hold items
4. Food and beverages
5. Transport

(b) Chemistry has contributed to environmental hazards. Briefly explain how.

9. (a)Define the following terms

1. Laboratory
2. First aid
3. First aid kit
4. Matter

(b)Mention 5 Laboratory rules

SECTION C

10. (a)What is first Aid?

(b) What does first Aids help? (Mention 5 point)

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

CHEMISTRY MID TERM EXAMINATION

FORM ONE- MARCH/APRIL-2022

Time: 2:30Hours

Instructions.

1.  This paper consists of section A, and B with a total of 10 questions
2. Answer all questions in spaces provided.
3. Section A carries 20 marks, section B 80 marks.
4. All answers should be written in the spaces provided.
5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
6. Write your number on every page of your answer booklet.

 SECTION A (20 Marks)

 Answer All questions in this section.

1.   The term chemistry means;

1. Study of nonliving things
2. Study of physical properties of matter
3.  Study of drugs
4. Study of composition and decomposition of matter

2.    Substances studied in chemistry are made up of;

1. Compounds
2. Matter
3.  Chemicals
4. Element

3. Which is not an importance of studying chemistry;

1. Understand how matter undergo chemical change
2. Make various medical products
3. Understand the use of chemicals in agriculture
4. Help us enter into various careers.

4. A mother at home can apply chemistry to;

1.    Weed flowers in the garden
2.    Dusting the floor of her house
3.    Weighing maize flour
4.   Cooking food in the kitchen

5.  Which of the following illustrates a chemical reaction taking place in our body

1. Falling sick
2. Digestion
3. Respiration
4. Salivating

6.         Which of the following is not a list of application of chemistry?

1. Table, chairs and Bricks
2. Shoe polish, antiseptics and toothpaste
3. Soap, medicinal drugs and perfumes
4. Fertilizer, pesticides and herbicides

7. Which of the following careers does not require the knowledge of chemistry?

1. Medicine
2. Agriculture
3.  Archeology
4. Pharmacy

8.    Identify the skill not acquired during chemistry study

1. Careful observation
2. Accurate reporting
3.  Testing hypothesis experimentally
4. Map reading skills

9.   Individuals who studied chemistry long time ago were called

1. Alchemists
2. AL chemistry
3.  Witch doctors
4. Chemists

10.  Chemistry is list related to;

1. Biology
2. History
3.  Physics
4. Geography

1. MATCHING ITEMS QUESTIONS.

2.                 Write T for true statement and F for a False statement.

1.                   There are only two branches of science
2.                 Chemistry has little application in our life
3.              Through chemistry, development of modern technology is made possible
4.               We only study chemistry to enter into careers
5.                 Chemistry is only studied by chemists

b) Fill in the spaces below;

        i) The field of science that deals with crop production and livestock management is  called……………

       ii) Ink, shoe polish, paper, clothes and rubber are examples of things produced from  application of knowledge of…………………………………………………….

      iii) Study of chemistry prepares people for different skills needed in our daily life such  as………….

      iv) Chemicals used to kill insects are called………………………………………………………..

      v)  The study of matter and its properties is called…………………………………

3.                 A) mention three branches of science

b) Who is a chemist?

c) List 5 places where chemistry is applied

d) Name three cleaning agents made by chemistry knowledge

4.                 Explain how chemistry is applied in the following;

1.                   Health
2.                 Agriculture
3.              Energy production
4.               Transport
5.                 Modern technology

5.                 Mention four importance of studying chemistry
6.                 Mention two items used in each of the following categories that are made through application of chemistry

1.                   Agriculture
2.                 Pharmaceutical
3.              Household items
4.               Food and beverages
5.                 Transport

b) Chemistry has contributed to environmental hazards. Briefly explain how

7.    a) Who are alchemists?

b) What was the aim of alchemists?

c) Briefly explain how chemistry has contributed to good life

8.  a) Mention areas where chemistry is applied.

    b) Mention five careers one can enter by studying chemistry.

9.    a) mention two branches of chemistry

      b) Differentiate chemistry from physics.

Student’s Examination No..............................................

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

CHEMISTRY MID TERM EXAMINATION-MARCH

FORM ONE-2021

Time: 2:30 Hours

Instructions.

1. This paper consists of section A, and B with a total of 10 questions
2. Answer all questions in spaces provided.
3. Section A carries 20 marks, section B 80 marks.
4. All answers should be written in the spaces provided.
5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
6. Write your number on every page of your answer booklet.
7. The following atomic masses may be used: H=1, N=14, O=16, S=32

SECTION A (20 Marks)

Answer All questions in this section.

1. For each of the items (i)-(x), choose the correct answer from the alternatives given

1. Kipp’s apparatus is used in the laboratory for;

1. Drying gases
2. Obtaining continuous supply of gases
3. Obtaining pure gases
4. Separation of gases

2. Chemical which can easily catch fire are best termed as;

1. Flammable 
2. toxic 
3. explosive 
4. corrosive

3. A pipette is used for;

1. Measuring distance of length
2. Measuring specific volume of liquid
3. Measuring volume
4. Heating liquid

4. Which of the following sets of apparatus are suitable for measuring volume of solution or liquids?

1. Burette, pipette and beaker
2. Burette, pipette and conical flask
3. Measuring cylinder, pipette and burette
4. Burette, flat bottomed flask and pipette

5. The substance that can burn your skin is best describe as;

1. Flammable
2. corrosive 
3. explosive 
4. toxic

6. Which of the following warning signs is likely to be found on a bottle containing petrol;

1. Oxidant
2. flammable
3. corrosive 
4. irritant

7. Which of the following chemical warning signs is likely to be found on a bottle containing potassium permanganate(vii);

1. Oxidant
2. corrosive
3. explosive 
4. toxic

8. Which of the following warning signs is likely to appear on the bottle containing concentrated Nitric Acid in the laboratory;

1. Corrosive 
2. explosive 
3. flammable
4. irritan

9. Consider the diagram below of a certain apparatus in the laboratory;

Which is the correct reading of the above measurement?

1. 10.50cm³ 
2. 10.5cm³ 
3. 10.60cm³ 
4. 10.6cm³

10. A student who get burns accidently in the chemistry laboratory would be given one of the following as a first Aid;

1. Potassium permanganate 
2. Nitric acid 
3. petroleum jelly
4. antibiotic solution

2. You are provided with two list A and List B. choose a word(s) from list B which matches the statement or phrase in list A and write down its letter;

SECTION B

3. (a) Define the following terms;

1. First Aid

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 

2. First Aid Kit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Laboratory apparatus

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Why beaker is used to estimate the volume of liquid and not to measure exactly volume of

liquid?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. (a) Give two reasons why most of laboratory apparatus are made up with the glass materials

1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Why laboratory should have larger window?

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

1. List down three causes of accidents in the scene;

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Suggest how each danger would be removed;

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7. Explain the First Aid procedures for the person with severe bleeding;

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
5. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8. (a) Laboratory apparatus are written the word “PYREX” What does mean by the above term . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

b)Draw well diagram and state one function of the following apparatus.

1. Pipette

2. Burette

3. Deflagrating spoon

4. Beaker

5. Measuring cylinder

9. (a) Define the term “chemical warning sign”

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b)Draw the chemical warning sign of the following substance;

1. Methylated spirit;

2. Insecticide

3. Ammonia gas

4. Concentrated sulphuric acid

5. Potassium nitrate

3. Write what might happen if you never followed instruction;

1. Always wash your hands with soap before you leave a laboratory;.

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Always replace the cover (stopper) after using chemical

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10. (a) The following list contains the name of pieces of apparatus with the letter in each name JUMBLED UP. Rearrange the letters to produce the name of pieces of apparatus;

1. LUPSTAA.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. TPTIPEE .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. GOTHUR.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. ROMTMREEHET .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. TERSTBEU.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. KSAFL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. REBAKE .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Name two apparatus which can be used as container from above list;

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

(c)Name one apparatus which can be used to measure volume from 9 (a) above

.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11. (a) Mention three laboratory rules after experiment;

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) List down three (3) item found in first Aid Kit for providing First Aid

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c)Mention four (4) importance of providing First Aid to the victim

1. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

THE END

BEST WISHES

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

CHEMISTRY MID TERM EXAMINATION-MARCH

FORM ONE-2021

Time: 2:30Hours

Instructions.

1. This paper consists of section A, and B with a total of 10 questions
2. Answer all questions in spaces provided.
3. Section A carries 20 marks, section B 80 marks.
4. All answers should be written in the spaces provided.
5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
6. Write your number on every page of your answer booklet.
7. The following atomic masses may be used: H=1, N=14, O=16, S=32

SECTION A (20 Marks)

Answer All questions in this section.

1. For each of the items (i)-(x), choose the correct answer from the alternatives given.

1. Chemistry is one of the sciences which deals with

1. Alkalinity and basicity of substance
2. The study of body cells
3. Composition, properties and behavior of matter
4. Chemical changes

2. In chemistry experiments test

1. Data
2. Problem
3. Hypotheses
4. Observation

3. When a chemist studies a substance, he/ she is interested in its

1. Force of attraction
2. Shape
3. Smell
4. Properties

4. A chemist should acquire all of the following skills except

1. Experimentation
2. Observation
3. Problem identification
4. Surgery

5. A chemistry defined as

1. The scientific study of matter, compound, and chemical reaction
2. The scientific study of compounds, mixture and organic substances
3. The scientific study of composition structure and properties of matter
4. The study of relation between human being, medicine, and pollution

6. A mother at home can apply chemistry to;

1. Weed flowers in the garden
2. Dusting the floor of her house
3. Weighing maize flour
4. Cooking food in the kitchen

7. Which of the following illustrates a chemical reaction taking place in our body

1. Falling sick
2. Digestion
3. Respiration
4. Salivating

8. Which of the following is not a list of application of chemistry?

1. Table, chairs and Bricks
2. Shoe polish, antiseptics and toothpaste
3. Soap, medicinal drugs and perfumes
4. Fertilizer, pesticides and herbicides

9. Which of the following careers does not require the knowledge of chemistry?

1. Medicine
2. Agriculture
3. Archeology
4. Pharmacy

10. Identify the skill not acquired during chemistry study

1. Careful observation
2. Accurate reporting
3. Testing hypothesis experimentally
4. Map reading skills

11. Individuals who studied chemistry long time ago were called

1. Alchemists
2. AL chemistry
3. Witch doctors
4. Chemists

2. You are given LIST A and LIST B. Choose the best response from LIST B that matches with description from LIST A.

(b) Answer the following questions by writing the correct answer on the blank spaces provided.

i) The field of science that deals with crop production and livestock management is called . . . . . . . . . . . . . . . . . . . . . . . . . . .

ii) Ink, shoe polish, paper, clothes and rubber are examples of things produced from application of knowledge of . . . . . . . . . . . . . . . . . . . . . . . . . . . 

iii) Study of chemistry prepares people for different skills needed in our daily life such as . . . . . . . . . . . . . . . . . . . . . . . . . . . 

iv) Chemicals used to kill insects are called . . . . . . . . . . . . . . . . . . . . . . . . . . . 

v) The study of matter and its properties is called . . . . . . . . . . . . . . . . . . . . . . . . . . . 

SECTION B (80 Marks)

Answer all questions in this section.

3. Mention two items used in each of the following categories that are made through application of chemistry

1. Agriculture
2. Pharmaceutical
3. Household items
4. Food and beverages
5. Transport

b) Chemistry has contributed to environmental hazards. Briefly explain how

4. (a) Mention and explain briefly any five warning signs found in chemical containers

giving one example in each case.

1.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Distinguish between the following;

i. Hypothesis against fact . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

ii. Deposition against sublimation . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5.(a) List down ten laboratory rules

(b) With the help of diagram explain how each of the following lab apparatus works

(i) Condenser (ii) Burette (iii) pipette (iv) deflagrating (v) thermometer

(c) State two aims of the alchemists

(i) _____________________________________________________________________________

(ii) _____________________________________________________________________________

6.Define the following terms;

1. Laboratory . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 
2. First aid . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 
3. First aid kit . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 
4. Matter . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

7.Explain the causes of the following accidents in the laboratory;

1. Shock
2. Bleeding
3. Skin burn

8.Mention five items found in first aid kit and their functions

9.(a) What do you understand by the term laboratory? . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

(b) Mention three characteristics of a good laboratory

(i) . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

(ii) . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

(iii) . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

(c) Why is it necessary to put on the following during the conduction of experiments

1. Laboratory coat . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 
2. Plastic goggles . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10.Name six injuries which can be caused by running in the laboratories or in the corridor of it.

1. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

CHEMISTRY MID TERM EXAMINATION

FORM ONE-2021

Time: 2:30 Hours

Instructions.

1. This paper consists of section A, and B with a total of 10 questions
2. Answer all questions in spaces provided.
3. Section A carries 20 marks, section B 80 marks.
4. All answers should be written in the spaces provided.
5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
6. Write your number on every page of your answer booklet.
7. The following atomic masses may be used: H=1, N=14, O=16, S=32

SECTION A (20 Marks)

Answer All questions in this section.

1. For each of the items (i)-(x), choose the correct answer from the alternatives given.

1. Chemistry is one of the sciences which deals with

1. Alkalinity and basicity of substance
2. The study of body cells
3. Composition, properties and behavior of matter
4. Chemical changes

2. In chemistry experiments test

1. Data
2. Problem
3. Hypotheses
4. Observation

3. When a chemist studies a substance, he/ she is interested in its

1. Force of attraction
2. Shape
3. Smell
4. Properties

4. A chemist should acquire all of the following skills except

1. Experimentation
2. Observation
3. Problem identification
4. Surgery

5. A chemistry defined as

1. The scientific study of matter, compound, and chemical reaction
2. The scientific study of compounds, mixture and organic substances
3. The scientific study of composition structure and properties of matter
4. The study of relation between human being, medicine, and pollution

6. A mother at home can apply chemistry to;

1. Weed flowers in the garden
2. Dusting the floor of her house
3. Weighing maize flour
4. Cooking food in the kitchen

7. Which of the following illustrates a chemical reaction taking place in our body

1. Falling sick
2. Digestion
3. Respiration
4. Salivating

8. Which of the following is not a list of application of chemistry?

1. Table, chairs and Bricks
2. Shoe polish, antiseptics and toothpaste
3. Soap, medicinal drugs and perfumes
4. Fertilizer, pesticides and herbicides

9. Which of the following careers does not require the knowledge of chemistry?

1. Medicine
2. Agriculture
3. Archeology
4. Pharmacy

10. Identify the skill not acquired during chemistry study

1. Careful observation
2. Accurate reporting
3. Testing hypothesis experimentally
4. Map reading skills

11. Individuals who studied chemistry long time ago were called

1. Alchemists
2. AL chemistry
3. Witch doctors
4. Chemists

2. You are given LIST A and LIST B. Choose the best response from LIST B that matches with description from LIST A.

(b) Answer the following questions by writing the correct answer on the blank spaces provided.

i) The field of science that deals with crop production and livestock management is called . . . . . . . . . . . .  .  . . . . . . . . .  . . 

ii) Ink, shoe polish, paper, clothes and rubber are examples of things produced from application of knowledge of. . . . . . . . . . . .  .  . . . . . . . . .  . . 

iii) Study of chemistry prepares people for different skills needed in our daily life such as. . . . . . . . . . . .  .  . . . . . . . . .  . . 

iv) Chemicals used to kill insects are called . . . . . . . . . . . .  .  . . . . . . . . .  . . 

v) The study of matter and its properties is called. . . . . . . . . . . .  .  . . . . . . . . .  . . 

SECTION B (80 Marks)

Answer all questions in this section.

3. Mention two items used in each of the following categories that are made through application of chemistry

1. Agriculture
2. Pharmaceutical
3. Household items
4. Food and beverages
5. Transport

b) Chemistry has contributed to environmental hazards. Briefly explain how

4. (a) Mention and explain briefly any five warning signs found in chemical containers giving one example in each case.

1. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . 
2. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
3. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
4. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
5. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

(b) Distinguish between the following;

i. Hypothesis against fact 

. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

ii. Deposition against sublimation 

. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

5.(a) List down ten laboratory rules

(b) With the help of diagram explain how each of the following lab apparatus works

(i) Condenser (ii) Burette (iii) pipette (iv) deflagrating (v) thermometer

(c) State two aims of the alchemists

(i) _____________________________________________________________________________

(ii) _____________________________________________________________________________

6.Define the following terms;

1. Laboratory . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
2. First aid . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
3. First aid kit . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
4. Matter . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

7.Explain the causes of the following accidents in the laboratory;

1. Shock
2. Bleeding
3. Skin burn

8.Mention five items found in first aid kit and their functions

9.(a) What do you understand by the term laboratory? . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .. . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

(b) Mention three characteristics of a good laboratory

(i) . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . ..

(ii) . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

(iii) . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

(c) Why is it necessary to put on the following during the conduction of experiments

1. Laboratory coat . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
2. Plastic goggles . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

10.Name six injuries which can be caused by running in the laboratories or in the corridor of it.

1. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
2. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
3. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
4. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
5. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .
6. . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . . . . . . . . . . . . . .  .  . . . . . . . . .  . .

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION AND VOCATIONAL TRAINING

FORM ONE MID TERM EXAMINATION- MARCH 2020

CHEMISTRY

Duration: 2:30 Hours

INSTRUCTIONS.

1. This paper consists of sections A and B with a total of ten (10) questions.
2. Answer all questions in spaces provided.
3. All writing must be in blue or black ink except drawing which must be in pencil.
4. Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
5. Write your Examination Number at the top right corner of every page.

SECTION A (20 Marks)

Answer all questions in this section.

1. For each of the items (i) –(x), choose the correct answer from the  among the given alternatives and write its letter in the box provide.

 (i) Chemistry is one of the sciences which deal with.

1.              Alkalinity and basicity of substances.
2.               The study of body cells
3.               Composition, properties and behavior if matter.
4.              Chemical changes.

(ii) A pipette is sued for:

1.              Measuring distance of length
2.               Measuring specific volume of liquids
3.               Measuring volumes
4.              Heating liquid

(iii) The states of matter are:-

1.              Element, gas and mixture
2.               Liquid, moisture and element
3.               Water, moisture and solid
4.              Gas, liquid and solid.

(iv) In chemistry experiments test:

1.              Data
2.               Problems
3.               Hypotheses
4.              Observation

(v) Which of the following sets of apparatus are suitable for measuring volume of solutions?

1.              Burette, pipette and beaker.
2.               Burette, pipette and conical flask.
3.               Measuring cylinder, burette and pipette.
4.              Burette, flax bottomed flask and pipette.

(vi) The substance that can burn your skin is best described as:

1.              Flammable
2.               Corrosive
3.               Explosive
4.              Toxic

(vii) Sublimation is the process whereby:-

1.              Substances float in liquids when heated.
2.               A solid substance changes directly to vapour without the liquid states when heated
3.               A mixture of solid substances is separated by heating
4.              An alcohol is separated from water.

(viii) One of the following apparatuses is used to measure a fixed volume of liquids.

1.              Pipette
2.               Burette
3.               Measuring cylinder
4.              Beaker

(ix) Coloured substances can be separated through the process called?

1.              Filtration
2.               Chromatography
3.               Distillation
4.              Sublimation.

(x) Acid changes colour litmus paper form:

1.              Blue to yellow
2.               Red to blue
3.               Red to pink
4.              Blue to red

2. (a) You are provided with two lists, A and B. Choose a word(s) from list B which matches the statement in list and write its letter against the appropriate statement in the space provided.

 (b) Fill in the blank spaces by using the appropriate terms.

1. Used in measuring mass…………………….
2. The person who studies chemistry…….
3. The people who studied chemistry long time ago……
4. Studies composition and decomposition of matter…..
5. A proved hypothesis………………..

SECTION B (80 Marks)

Answer all questions in this section.

3. (a) What is matter?

    (b) Mention three (3) states of matter.

4. (a) Write the chemical symbols for the following

(i)     Lead

(ii)  Potassium

(iii) Gold

(iv) Sodium

(v)   Chlorine

     (b) Define the term:

(i)     First Aid

(ii)  First Aid Kit

5. (a) Which method would you use to separate each of the following mixture?

(i)     Water mixed with kerosene

(ii)  Iron powder mixed with sand

(iii) Ammonium chloride crystals mixed with sodium chloride crystal

(iv) Water mixed with alcohol

    (b)    Give one function of each of the following apparatus in the chemistry laboratory.

 (i) Spatula…………………………………………………………………………….

 (ii) Gas jar…………………………………………………………………………….

 (iii) Lie – big condenser……………………………………………………………..

 (iv) Motor and pestle…………………………………………………………………

 (v) Wire gauze………………………………………………………………………..

6. (a) Mention any three laboratory rules

    (b) Name any three places or areas where the knowledge of Chemistry is applied.

7. (a) Mention any four instruments found in First Aid Kit

    (b) Write the names of the following processes of changing matter from one state to another.

(i)     Solid to liquid

(ii)  Liquid to gas

(iii) Gas to liquid

(iv) Liquid to solid

8. (a) Define with one example:

(i)     Element

(ii)  Compound

     (b) Compare physical change and chemical change.

9. (a) Why are there laboratory rules? (Give two reasons)

    (b) Suppose your laboratory does not have any water, mention two possible dangers of using it.

10. (a) Differentiate hypothesis from analysis.

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

     (b) Effective use of the four senses of observation is important before a chemist can make conclusion. With four points, show how the senses are used as tools of observation during experimentation by giving one example for each.

(i)     ……………………………………………………………………………………………………….

(ii)  ……………………………………………………………………………………………………….

(iii) ……………………………………………………………………………………………………….………………………………………………………………………………………………….